<form action="/airroute/" method="post">
    <label><span>航线编号:</span></label>
    <input type="text" name="airrouteno" style="width: 120px">
    <label><span>航线起点:</span></label>
    <input type="text" name="begin" style="width: 120px">
    <label><span>航线终点:</span></label>
    <input type="text" name="end" style="width: 120px">
    <input type="submit" value="查询">
</form>